Charles kelley



(No Model.)

eKBLLBY( ENVELOPE.

No. 546,048. Patented Sept. 10.1895.

CHARLES KELLEY, OF TORONTO, CANADA.

ENVELOPE.'

SPECIFICATION forming part of Letters Patent No. 546,048, datedSeptember 10,1895. Application filed December 8,1894..` serrano.531.249. (Nomina.)

.To a/ZZ whom t may concern.-

Beit known that I, CHARLEs KELLEY, a subject of the Queen of GreatBritain, residing at Toronto, in the Province of Ontario and Dominion ofCanada, have invented certain new and useful Improvements in. Envelopes;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to certain new and useful improvements insafety-envelopes, and especially to a combination of an inner one heldwithin an outer envelope by means of an insoluble mucilage, which willnot allow the inner pocket containing the letter to be removed withoutfirst tearing open the outer jacket, as the inner envelope is held tothe inside of the outside envelope by a sticking preparation which willnot dissolve it the same is soaked in water or in spirits of any kind.

A further object of the invention resides in the provision of a rigidstrip of any suitable material, which is secured to the end of theenvelope which is inserted within the outer casing or envelope andcarries the mucilaged portion, the said rigid strip being for thepurpose of preventing the inner envelope being released from the outerone by cutting 4the mucilage and also to prevent the mucilaged end beingbent and loosening the envelopes by any crnmpling thereof. l constructthe i11- ner pocket or envelope having one of its ends, preferably theone carrying the rigid strip, shorter than the other end, and one of thelongitudinal edges of the envelope thus being on the bias, which willallow the letter contained within to be easily and quickly removed bysimply taking hold of the corner of the letter which is not incased.

A still further object of the invention consists in treating the outsideend of the envelope, which surrounds the mucilaged 'end of the innerenvelope, with a waterproof material as an extra precaution against anyattempt to release the inner envelope in case a sticking material isused which is soluble.

To these ends and to such others as the invention may pertain the sameconsists, fur-` ther, in the novel construction, combination, andadaptation of the parts, as will be hereinafter more fully described,and then specilically defined in the appended claims.

I clearly illustrate my invention in the accompanying drawings, which,with the letters of reference marked thereon, form a part of thisspecification, and in which drawings similar letters of referenceindicate like parts throughout the several views, in which Figure 1 is aperspective view of the outer envelope inclosing the inner one, partsbeing broken away to show the manner of fastening the two envelopes;Fig. 2, a plan view of the inner envelope inciosing a letter; Fig. 3, alongitudinal section through the envelopes and a cross-sectional viewthrough the rigid strip.

Reference now being had to the details of the drawings by letter, Adesignates an outer envelope of a well-known construction, having a flapa, and its opposite end covered for a short distance in from the edgewith a. waterproof' coating of any suitable kind, as seen at B.

O is the inner envelope, which has one end D shorter than the oppositeend E, and to this shorter end is secured the rigid strip E', of wood,metal, or any suitable substance.

F is the letter carried within the inner envelope, and owing to thebiased edge of the said envelope one corner of the said letter projectsoutside the narrow end, so as to allow of its being readily removed bytaking proofing solution is applied to the outer end of the outsideenvelope, which will prevent the inner envelope from being removed whenan ordinary soluble mucilage is utilized. I also apply some suchmaterial as aniline to the outer ridged end, so that any tampering, asmoistening the end, With the intent to eX- tract the inner envelope,will cause the coloring-matter to spread. I make no claim, however, tothe use of this coloring material used in this connection, as I am awarethat the same is commonly used.

It will be observed that the gist of the 4invention resides in providingsafety-envelopes which cannot be tampered with for the purpose ofreleasing the inner envelope from the outer one Without detection, andnot to prevent the ends being cut or torn open. Hence it is notnecessary to equip the sides and the opposite end With a rigid strip.

Having thus described my invention, what I claim to be new, and desireto secure by Letters Patent, is

l. As an improved article of manufacture the combination of the innerenvelope, having a ridged strip at one end, the said end designed to becoated With an insoluble muoilage, and an outer envelope into which saidinner envelope is adapted to be inserted and sealed to the inner end ofthe outside envelope, substantially as and for the purpose set forth.

2. In combination an inner envelope having one end coated with aninsoluble muoilage, and designed to be stuck to the inner end of anouter envelope, and means for preventing the said mucilaged ends beingcrumpled, substantially as shown and described.

In testimony whereof I atx my signature in presence of tWo Witnesses.

CHARLES KELLEY.

Witnesses:

SAMUEL A. YORK, J r., GEORGE W. ROBINSON.

